196972986718 has 4 divisors (see below), whose sum is σ = 295459480080. Its totient is φ = 98486493358.

The previous prime is 196972986647. The next prime is 196972986739. The reversal of 196972986718 is 817689279691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 817689279691 = 2633 ⋅310554227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49243246678 + ... + 49243246681.

It is an arithmetic number, because the mean of its divisors is an integer number (73864870020).

Almost surely, 2^196972986718 is an apocalyptic number.

196972986718 is a deficient number, since it is larger than the sum of its proper divisors (98486493362).

196972986718 is an equidigital number, since it uses as much as digits as its factorization.

196972986718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98486493361.

The product of its digits is 164602368, while the sum is 73.

The spelling of 196972986718 in words is "one hundred ninety-six billion, nine hundred seventy-two million, nine hundred eighty-six thousand, seven hundred eighteen".